An article comprising a hydrated matrix containing 100 parts by weight of cement and around 80-120 and preferably around 100 parts by weight of sand with a grain size of less than 1 mm, and alkali-resistant reinforcing glass fibres in a proportion of around 3-4 wt %, preferably 3.5 wt %, relative...http://www.google.es/patents/US5779957?utm_source=gb-gplus-sharePatente US5779957 - Article, in particular a building covering plate, and process for manufacturing said article
Article, in particular a building covering plate, and process for ...
